This math topic involves calculating the speed of a train as it passes by a platform. Each problem provides the length of the train, the length of the platform, and the time taken for the train to pass completely over the platform. From these parameteters, the student must calculate the train's speed. The problems are presented with multiple choice answers for students to choose from. This topic is a practical application of the concepts of speed, distance, and time.
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A 240 m long train goes past the entire length of a 60 m platform in 20 s. How fast is the train going?